There isn't direct interaction, but you can mess with your opponent in different ways:- blocking certain spaces in the hangouts- Taking experts that they need- Taking a vineyard that they could use- Putting your marker on an action youknow they want to take

But this is limited since you don't want to hamper your own strategy by blocking your opponent. So if you can do that while also advancing yourself, go for it.

Fatum has it. I would just add that there is a sort of interaction in doing what your opponents are doing, or not. This is in terms of planting the same wines, and fighting over renowned and 2nds of color; or, of making lots of cheap wines or fewer, more valuable wines, and fighting over actions and spaces, especially the export.

--Players can own estates in the same region and regions' "renown" is a shared resource, so you can tilt your own wine's value at the expense of an opponent's ability to do so.

--The export market is extremely subtle and competitive. You can't always be sure before the end of the game who has the most significant presence in a certain market segment, and players can jockey for position quite a bit; the more attention one player places on exports the more it tends to incentivize other players to keep up in the "arms race" (at least in our games).

--The wine fair has an interesting worker placement mechanism with a risk/reward element that can, in some situations, turn into a race between players to grab the perceived "best" slots.